Which to use
“mol” is a noun and “mou” is an adjective - they look or sound alike but fill different roles in a sentence.
- #40,405
- “mol” frequency rank
- #46,072
- “mou” frequency rank
- 86477
- confusion score
Side-by-Side Comparison
| Feature | mol | mou |
|---|---|---|
| Definition | Unidad de cantidad de sustancia empleada en el Sistema Internacional de Unidades, definida como la cantidad de sustancia de un sistema que contiene tantos entes elementales como átomos hay en 0,012 kg del nucleído carbono-12, o como la cantidad de una sustancia cuyo peso en gramos equivale a su número atómico. Si se emplea para expresar la cantidad de una sustancia, debe indicarse a qué tipo de unidades corresponde: átomos, moléculas, etc. El número de unidades contenidas está representado por el número de Avogadro. | Blando. |
Where the spellings diverge
Shared letters are muted; the letters that actually set mol and mou apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
These two trip readers on the page rather than in the ear: mol is [ˈmol] while mou is [mu]. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - l in “mol” becomes u in “mou”, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 86477, derived from the frequency rank of both members and their visual similarity.
mol is recorded at frequency rank #40,405, classified as anoun, pronounced [ˈmol]. mou is at rank #46,072, tagged as anadj, pronounced [mu].
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 86477, this pair ranks #5,261 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of mol vs mou
Shared letters: mo. Private to "mol": l. Private to "mou": u.
"mol" · 3 letters · shape CVC · "mou" · 3 letters · shape CVV
Frequency comparison
Frequently Asked Questions
Can "mol" and "mou" be used interchangeably?
Which is more common, "mol" or "mou"?
Remembering mol vs mou
The fastest way to pick the right one every time.
- Check the role first: if you need a noun, it's “mol”; for an adjective, it's “mou”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “mol” entry
- Browse more pairs most likely to be confused. Most confusable